This is a terrible idea! You just read an article about PR firms editing articles about science & history. Facts are the least democratic things of all!
Do you want people to vote on science? How many people think Relativity is just E=mc^2? They ignore all the import aspects about it. If there wasn't a maximum speed (speed of light), then kinetic energy (KE=mv^2) would go to infinity and create unlimited energy.
Do you want people to vote on History? Well, they did, and the Holocaust only killed Jews. The other 5 million killed for handicaps, homosexuality, and others don't count. There were even 3 more genocides in the 20th century alone: Pol Pot's Cambodia (the educated), Serbia (muslims), & Rwanda.
I don't want popular opinion to warp reality anymore!
And you even left off the Armenian Genocide.
The road to ruin is always in good repair, and the travellers pay the expense of it. -- Josh Billings